How can I make .querySelectorAll() or .forEach() work in Firefox?

Question

I want to remove all elements with class sample.

This is working well in Chrome and Safari:

document.querySelectorAll('.sample').forEach(function(e) {
    e.parentNode.removeChild(e);
});

Here is the error I get in Firefox:

TypeError: document.querySelectorAll(...).forEach is not a function

Answer 1

I've just tested document.querySelectorAll('.element') with .forEach in Firefox 71, and it worked.

CanIUse shows that it's been supported in FF, since version 50 (late 2016): https://caniuse.com/#search=forEach

Older versions of FF have a 0.25% marketshare, so .forEach should be safe to use.